Double-disk attachment for seed-drills.



0. G. RIESKB. DOUBLE DISK ATTACHMENT FOR SEED DRILLS.

APPLICATION FILED JAN. 18, 1912.

Patented Oct. 28, 1913.

2 SHBETSSHEET l.

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By 7065' Qttmnags (5549M wizzmwfiw O. G. RIESKE.

DOUBLE DISK ATTACHMENT FOR SEED DRILLS.

. APPLICATION FILED JAN. 18, 1912. 1,076,998. Patented 0012.28, 1913.

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.OT'IO GEORGE vl'tIESKE, OF BEAVER DAM,

EUCHENHOFNER, OF INDIANAPOLIS,

WISCONSIN, .ASSIGNOB; T0 ALBERT J.

INDIANA.

DOUBIJE-DISK.ATTAGHMENT FOR SEED-DRILLS.

Specification of.Letters Patent. 7 Patented 091;, 28 191.3,

Application filed January 18, L912, Serial No. 671.882,

' same.

This invention relates to double disk attachments for seed drills, andhas for its object to simplify and improve the same in the severalparticular-s hereinafter noted.

Particularly, the invention is in the nature of an improvement on thedouble disk attachment disclosed and claimed in my copendingapplication, S. N. 6011,4255, filed January 30th, 1911, and entitledDouble disk attachment for seed drills.

In :the present application, as in the device of the prior applicationabove identified, the converging disks are arranged for adjustment inthe planes of their initial convergence, so as to thereby compensate fordiminution in the sizes of the disks .due to wear, without changing theangle of the disks in respect to each other. The present application,however, involves a novel arrangement of the disks and the diskadjusting and supporting means in respect to the seed boot or seeddelivery spout, all as will be hereinafter more fully disclosed.

In the accompanying drawings which illustrate the invention, likecharacters inclicate like parts throughout the several views. Referringto the drawings, Figure 1 is va side elevation of the improved diskattachment; Fig. 2 is a view corresponding to Fig. l, with one of thedisks removed and with some parts broken away; Fig. 3 is a rearelevation of the disk attachment; Fig. 4 is a transverse section takenon the line a m on Fig. 2; and Fig. 5 is a detail in section taken onthe line a m on Fig. 2.

The numeral 1 indicates a seed .boot or delivery spout that is castintegral with the flanged arch bar 2 to the front end of which the usualdrag bar 8 is rigidly secured in any suitable way. The arch bar 2 has arearward projection 4 to which an inside scraper 5 is shown as securedby a short nutted bolt 6. The lower end of the seed bolt 1 is curveddownwardly and forwardly at 1*, for an important purpose which willpresently appear. Just above the open lower end of the curved deliveryend section 1*, the seed bootis provided with an integrally castforwardly and upwardly projecting hearing or journal lug 7 which isformed with a longitudinal slot 8 and on its opposite faces isprovidedwith parallel upper and lower ribs 9. U

The converging disks 10 are provided" with laterally ofiset hub caps11,.the flanges of which are rigidly secured to the outer faces thereofby rivets, .or otherwise. The disks are directly j ournaled on heavydisklike hubs 12, provided with shoulders 13 and reduced square bosses14 .on their inner faces. The disks 10 are provided with analperforations that are journaled on the said shoulders 13, and the squarebosses 14. of

the hubs 12 are located between the flanges 9 of the journal ing 7 ofthe seed boot 1. The bolt 15, which is slightly crooked, is passedthrough the hubs 12 and through the slot 8 .of the said journal lug 7and rigidly, but adjustably holds the hubs 12 to the said lug. The headof the bolt 15 is seated in .a recess in one of the hubs l2, and

the nut 15 thereof is seated in a recess formed in the other hub. Thehub caps 11 of the disks 10 are formed with axial perforations 11 sothat access may be had with a wrench, either with the head or the buttof the bolt 15. .On its opposite sides, the boot 1 is shown as providedwith chafing ribs 16 against which the inner faces of the disks areadapted to run, to prevent chattering of the disks and to assist inkeeping the same scraped clean.

WVhen the disks 10 are properly set, their con-verging edges havecontact approximately at the point marked 3 on Fig. 2, and it should behere noted that the inclination of the slot 8 and of the ribs 9 of thejournal lug 7 are such that when the disks are diminished in diameter bywear,

contact between the converging edges thereof may be maintained byadjusting the jour-- nal toward the front extremity of the said slot 8.Adjustment of the journal in the direction stated, not only serves tomaintain the disks in contact approximately at the point 2 but alsokeeps the front upper portions of the disks in close engagement with theflanges of the arch bar 2. In this way,

the disks may be adjusted to compensate for wear and maintain contactbetween the converging edges thereof without changing the initial angleof the disks in respect to each other, or in respect to the line ofmovement of the disk attachment. Otherwise stated, the disks areadjusted in the planes of their 7 initial convergence.

The grain or seeds delivered between the disks through the seed boot 1will, by the downwardly and forwardly curved extremity 1 thereof, bedeflected forwardly, and hence, discharged into the furrow at a point infront of the axes of the disks, where they will be properly deposited inthe furrow and properly covered. Furthermore, the said seed boot withits forwardly curved lower end extended below the disk journal, affordsa delivery conduit which is closed down to the very point of discharge,to-wit, the point vertically below the disk journal and the journal lug7. This is highly im portant because it affords a front delivery with aseed boot or spout extended downward at the rear of the disk journalwhere the separation of the disks makes possible the use of a seed bootof proper size, and furthermore, that arrangement of the boot preventsthe grain from coming into con tact with the upwardly moving portions ofthe disks.

As is well known, it is customary to deliver the seeds or grain througha flexible spout such as a rubber hose or metal ribbon tube which isusually projected through the lower end of the seed boot, the seed bootbeing terminated at a point too high up for the proper delivery of theseed between the disks. My improved arrangement of the seed boot carriesthe toe or delivery end of the same to such a point that it isunnecessary to project the seed spout through the seed boot, and theseed boot, therefore, serves to protect the seed spout and to hold thesame out of contact with the disks.

The disk attachment constructed on the plan described is strong, cheapand durable, provides for all adjustments of the disks which aredesirable to render the disks useful when diminished in size by wear,and is generally efficient for the purpose had in view.

That I claim is:

1. In a double disk attachment, a seed boot having integrally casttherewith a forwardly projecting journal lug located near its lower end,disk journals mounted on said journal lug for forward and rearwardadjustments, and forwardly converging disks mounted on said journals andmovable thereby on said journal lug in the planes of their initialconvergence.

2. In a double disk attachment, a seed boot having integrally casttherewith a forwardly projecting journal lug located near its lower end,disk journals mounted on said journal lug for forward and rearwardadjustments, forwardly converging disks mounted on said journals andmovable thereby on said journal lug in the planes of their initialconvergence, and the lower end of said spout being forwardly andrearwardly curved below said journal lug.

8. In a double disk attachment, a seed boot having integrally casttherewith a forwardly extended arch bar and a forwardly extended journallug projecting respectively from the upper to the lower extremitiesthereof, said journal lug having forwardly converging bearing surfacesand forwardly and rearwardly adjustable disk journals, the lower end ofsaid spout being downwardly and forwardly curved below said journal lugand forwardly converging disks mounted on said journals, and bymovements of the latter, adjustable in the planes of their initialconvergence.

4:. In a double disk attachment, a seed boot having integrally casttherewith a forwardly extended arch bar and a forwardly extended journallug projecting, respectively, from the upper and lower extremitiesthereof, said journal lug having a longitudinally extended slot, and thelower end of said spout being forwardly and downwardly curved below saidjournal lug, in combination with a bolt passed through the slot of saidjournal lug, hubs secured to said journal lug for adjustmentslongitudinally of the slot thereof, and forwardly converging disksjournaled on said hubs, and by the said hubs and bolt, secured forforward adjustments in the planes of their initial convergence tocompensate for diminution in size of the disks due to wear.

In testimony whereof I afiix my signature in presence of two witnesses.

OTTO GEORGE RIE SKE.

Witnesses:

BERNIGE G. WHEELER, HARRY D. Kineonn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of I'atents,

Washington, D. C.

